Screen size
A27 RetinaWinner: 4.3"+40%
K4402.6"
Quick verdict
A27 Retina leads the measured specs 10-2.
Measured wins
A27 Retina
10
spec wins
Overall winner
Ties
3
equal specs
K440
2
spec wins
Screen size
Technology
A27 Retina
GSM / HSPA
K440
GSM
2G bands
A27 Retina
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
K440
GSM 900 / 1800 - SIM 1 & SIM 2
3G bands
A27 Retina
HSDPA 2100
K440
-
Speed
A27 Retina
HSPA 7.2/0.384 Mbps
K440
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
-
GPRS
A27 Retina
-
K440
Yes
EDGE
A27 Retina
-
K440
No
Announced
A27 Retina
2013, March. Released 2013, March
K440
2012
Status
A27 Retina
Discontinued
K440
Discontinued
Dimensions
A27 Retina
133.6 x 66 x 9.1 mm (5.26 x 2.60 x 0.36 in)
K440
119.5 x 54 x 13.5 mm (4.70 x 2.13 x 0.53 in)
Weight
A27 Retina
126.5 g (4.44 oz)
K440
-
SIM
A27 Retina
Dual SIM (Mini-SIM)
K440
Dual SIM (Mini-SIM)
Type
A27 Retina
IPS LCD
K440
TFT, 256K colors
Size
A27 Retina
4.3 inches, 51.0 cm2 (~57.8% screen-to-body ratio)
K440
2.6 inches, 20.9 cm2 (~32.4% screen-to-body ratio)
Resolution
A27 Retina
540 x 960 pixels, 16:9 ratio (~256 ppi density)
K440
240 x 320 pixels, 4:3 ratio (~154 ppi density)
OS
A27 Retina
Android 4.1 (Jelly Bean)
K440
-
CPU
A27 Retina
Dual-core 1.2 GHz
K440
-
Card slot
A27 Retina
microSDHC (dedicated slot)
K440
microSDHC (dedicated slot)
Internal
A27 Retina
4GB 512MB RAM
K440
-
Phonebook
A27 Retina
-
K440
1000 entries
Call records
A27 Retina
-
K440
Yes
Single
A27 Retina
8 MP, AF
K440
1.3 MP
Features
A27 Retina
LED flash
K440
-
Video
A27 Retina
Yes
K440
Yes
Single
A27 Retina
2 MP
K440
-
Video
A27 Retina
K440
-
Other
A27 Retina
-
K440
No
Loudspeaker
A27 Retina
Yes
K440
Yes
3.5mm jack
A27 Retina
Yes
K440
No
WLAN
A27 Retina
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
K440
No
Bluetooth
A27 Retina
Yes
K440
2.0
Positioning
A27 Retina
GPS
K440
No
NFC
A27 Retina
No
K440
No
Radio
A27 Retina
FM radio
K440
FM radio, recording
USB
A27 Retina
Proprietary
K440
microUSB
Sensors
A27 Retina
Accelerometer
K440
Messaging
A27 Retina
-
K440
SMS, MMS
Games
A27 Retina
-
K440
Yes
Java
A27 Retina
-
K440
Yes
Other
A27 Retina
-
K440
Audio/video player Photo viewer Organizer
Type
A27 Retina
Li-Ion 1800 mAh battery
K440
Li-Ion 2100 mAh battery
Stand-by
A27 Retina
Up to 180 h
K440
Up to 800 h
Talk time
A27 Retina
Up to 4 h
K440
Up to 12 h
Colors
A27 Retina
Black
K440
Black/White, Black/Red
SAR EU
A27 Retina
1.00 W/kg (head)
K440
-
Price
A27 Retina
About 160 EUR
K440
About 30 EUR